The experiment goes something like this: A volunteer subject sits at a desk in a room, thinking he's there to answer some survey questions, but in reality, this is an experiment on human behavior and covert influence. A researcher sits on the other side of the desk, facing the subject. There is a glass jar on the desk, filled with cookies. The researcher casually asks the subject, "Would you like a cookie?" And some percentage of subjects say yes, but it's a small number, perhaps something like 15% - 20% (I don't remember the exact numbers, but that's not important...